Rio de Janeiro's famous Copacabana beach New Year's Eve celebration is commonly called Réveillon.
Réveillon is the Portuguese term widely used in Brazil for New Year's Eve festivities. Rio's celebration centers on Copacabana Beach, where enormous crowds gather for concerts, ceremonies, and a major fireworks display over the water.
Many participants wear white, a color associated with peace and renewal, and some make offerings to Iemanjá, an important sea-associated figure in Afro-Brazilian religious traditions. People may also jump seven waves, a practice connected with wishes and good fortune.
The event is often described as one of the world's largest New Year's gatherings. The word réveillon itself is not exclusive to Rio: French-speaking communities and other places also use related forms for New Year's Eve or the associated late-night feast. Brazilian regional customs therefore sit within a broader national celebration.